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It is HIGHLY Recommended that you do BOTH these jobs at the same time. The exact same engine teardown and labor is required to do both jobs and the chances that the original water pump will last you another 90,000 miles is slim and none. Therefore, although expensive, it is cost effective to do both jobs all at once.

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14y ago
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Q: Should the drive belt and water pump on a 2004 Toyota Highlander V6 be replaced at the same time as the timing belt 90k or is that unnecessary?
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